Home / 103,035.33-154,286.84-71,112.94

Finding the Fourth Proportional to 103,035.33, 154,286.84 and 71,112.94

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Solution

The fourth proportional to 103,035.33, 154,286.84 and 71,112.94 is: 106,485.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,035.33 : 154,286.84 = 71,112.94 : x
  2. Step 2: Convert to fraction form
    103,035.33/154,286.84 = 71,112.94/x
  3. Step 3: Cross multiply
    103,035.33x = 154,286.84 × 71,112.94
  4. Step 4: Simplify right side
    103,035.33x = 10,971,790,587.77
  5. Step 5: Solve for x
    x = 10,971,790,587.77/103,035.33
  6. Step 6: Final answer
    x = 106,485.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.